Back-filling machine for excavations.



W. J. A.` HOENECKE. BACK FILLING MACHINE FOR ExcAvATIoIIIs.`

APPLICATION FILED APR. I3, P911.

Patented Oct. 16,1917. *nl 2 SHEETS-SHEET 1*.

w. 1. A, HoENEcKE.

BACK FILLING MACHINE FOR EXCAVATIONS.

APPLICATION FILED APR. I3 |917.

Patented Oct. 16, 1917.

2 SHEETS-SHEET 2.

WALTER J'. A.. EOENECKE, 0F MILWAUKEE, WISCONSIN, ASSIGNOB 0F ONE-HALF T0 ED W. STBAUSS, 0F MILWAUKEE, WISCONSIN'.

BACK-FILLING MACHINE FOB EXCAVATIONS.

Specification of Letters Patent.

Patented Oct. '16, 1917 lowing is a full, clear, and exact description thereof.

My invention relates to new and useful improvement in machines for the back-filling of excavations, the principal object being to provide an arrangement whereby the dirt which has been removed in forming a trench or other excavation may be readily replaced therein after pipes, conduits or the like have been the excavation.

An additional object is to provide a ma-v placed in the bottom of chine of this character which may be readily transported from place to place as is necessary to use the same. A still further object is to produce a back-filling machine, all of the functions of which may be readily carried out by one person.

With these and several other objects and advantages in view the invention resides in the novel features of construction, combination and arrangement of arts which will be hereinafter more partie arly described and In the accompanying drawings: f

`Figure 1 represents a side elevation, partly in section, of a machine constructed in accordance with my invention;

Fig. 2' is a horizontal sectional view taken on the plane of the line 2-2 of Fig. 1; Fig. 3 isa detail transverse section taken on they plane of the line 3 3 of Fig. 1; vand Fig. 4 is a detail side elevation of a modi ed'means for connecting the swinging arm to the body of the machine. v

Referring now more particularly to the several gures of the drawings, wherein similar reference characters indicate like parts, it will bevnoted that Vthe numeral 1 designates a preferably rectangular. skeleton body which is supported upon a pair of trucks and carries the operating means for the machine, in the present instance said operating means consisting of an internal combustion engine 3. The wheels ofthe trucks 2 may be either anged torun on tracks, or very wide as showninlig. 1. In

both cases they are designed to move along one edge of an excavatlonE and parallel thereto. In digging such an excavation it is customary to throw the dirt removed therefrom to one side only of the trench, this forming a continuous mound M of material throughout the length of the excavation. This material may thus be readily replaced in the trench when necessary for the same to be refilled.

The usual ymethod. of back-filling the excavation is to provide a number of unskilled laborers with ordinary hand shovels to manually transfer the material to the excavation. My invention is designed to much morequickly replace the material, and is carried out by means of a single large shovel or scoop 4 which is movable toward the body 1 on an arm 5 which extendsifrom one side of the frame, preferably that adjacent the excavationv E. t

In the present embodiment of the invention the arm comprises a pair ofspaced channeled bars 6 between the opposite ends of which the'sheaves 7 and 8 are mounted. The inner end of the arm is pivoted between suitable bearing brackets 9 tothe body 1 so thatwh'en the machine is not in operation this arm Imay be moved into a substantially vertical position. Normally the operative position of the arm 5' is substantially horizontal as clearly shown in Fig. 1, and it is held in this position by a cable 10 which extends from its outer end to adrum 11 connected in any `suitable mannerv lwith the en- The intermediate stretch of the cable is trained over the pulley 12 mounted upon the upper ends of a pair of angle ymetal bars which togetl'er form a-standard 13, the Same also being `carriedv by the body land re-` f tained in working position by a brace 14.

As aresult of this arrangement it will be obvious that by actuating a clutch lever 15 in the proper direction the drum 11 may be caused torotate `to windthe cable 10 therearound and elevate'the arm 5.

As hereinbefore mentioned the shovel 4 is.

`of a pair of flat bars 18 which are disposed above and below the arm 5; the ends of the Abars 18 also extend beyond the plates 17 to comprise the arm 5.

form stops 19. The inner sides of the plates 17 carry spaced rollers 20 which are adapted -to run on the horizontal flanges of channeled bars 6, said rollers being spaced apart a dis- U ltance approximately equal the distancebeto the drum 11, -a clutch lever 24 also being provided to control the direction of rotation of said drum. It will be seen that movement ofthe drum in one direction will cause the carriage to bem'oved toward the outer end of the arm 5 and since the latter'is disposed over the excavation E andthe pile of material adjacent the same, the shovel 4 will be in position to move some of the material -into the .excavation upon the movement of the carriage in the reverse direction. In order to permit the shovel to readily ride over '-,the mound 'of material it is provided with a pair of arms 25 which are pivoted to the l' plates 17, the pivots being disposed between direction., The parts are so arranged that the stops 19 of the brace bars 18. These stops will thus be engaged by the arms 25 and limit the rotation of the 'shovel in one the shovel mayx be raised as it rides over the pile of dirt/when the carriage is being moved toward the outer end of the arm 5, but when theA latter is moved in the other direction the shovel will'be held asshown in Fig. 1 so that it may move a quantity of dirt into the excavation. Should the mound M- be very large the arm 5 as well as the shovel fl will be elevated a greater or lesser extent.

Since, under certain circumstances, it may be advisable-to have the arm .6 swing 1n horizontal positions, the arrangement shown in Eig. y4 isflprovided. From this view itA will be seen that-aA universalj'oint is disposed between the arm6 and the body 1,

t this *joint being of any ordinaryor approved construction, but preferably similar tothat shown in the above mentioned figure.

From the fore oing description taken 'in connection with t e accompanying drawings itwill be obvious'that avery sim ly constructed and extremely eilicient mac ine has f ing sewer pipes, electric con uits, etc.` a-

beenl produced for use in the back-filling of l excavations, includingr trenches and the like which have been `dug for-the urpose of la rious minor changes may be made in the capacity of the several parte of the.vr machine riage.

vable with the outer si es of to accommodate its use on different classes of work.

I'claim:

1. A machine of the class described comprising a body member, an arm extending therefrom, a carriage slidable on the arm, said. carriage including a dpair of plates engageable with opposite si es of the arm, spacing bars connected t`o the plates for holding the same together, upper and lower spaced' stops on saidplates, pivots disposed between the stops, a shovel. having a air of spaced arms ulcrumed intermediate t eir ends to said pivots, the portions of the arms on each side of the pivots being adapted to engage the stops, whereby to prevent movement of the shovel in one direction, and means for moving the said carriage.

2. A machine of the class described comprising a body member, an arm extending therefrom, a carria e slidable on the arm, said carriage incluv ing a engageable with opposite si es of the arm, spacing bars connected `to the plates for holding the same together, upper and lower spaced stops on said plates, the stops on each plate being disposed in slbstantially vertical alinement, pivots disposed betwee the stops, a shovel havin a pair of spacedl arms fulcrumed interm iate their ends to said pivots, the portions of the arms on each side of the pivots being disposed on, oppo.

site sides, of the stops to position the arms and shovel at an angle to the horizontal and to limit movement of the shovel in one direction, and means for shifting the car- 3. A machine ofthe class described comprising a b ody member, anvarm extending therefrom, a carriage slidable on .the arm, saidcarriage including a pair of plates engageable with opposite sides of the arm,

upper and lower spacing bars disposed on (pair of plates v each-side of the arm and secured to the lates, the ends of said bars being extended yond the lates to provide sto s, said stops being 'sposedv in substantia y vertical .alinement, ivots disposedv between said stops, a shove having a pair of spaced arms fulcrumed intermediate their ends on said pivots, the portions of vthe arms oneach side of the pivots being di osed on opposite 'sides of'the stops to position the arms and shovel at an angle to the horizontal and to limit movement of the .'shovel in one direction, and means for shifting the carriage. Y

4. ,A machine of the class described comprising a body member, an arm extendin therefrom, .said arm including ay air o aced bars, a carriage slidable on e arm,

ebarso t e same including a air o'f latesengagt e arm, u per and lower spacing bars disposed on side of the arm and secured to the` iso memes e@ plates, the ends of said spacing bars being extended beyond the plates to provide stops, a pair of rollers journaled to the inner face of each plate and in engagement with the opposite sides of the hars of the arm, pivots disposed between said stops, a shovel having a pair of spaced arms fulcrumed ntermediate their ends to said pivots, the portions of the arms on each side of the pivots being adapted to engage the stops, where- 1e by to prevent movement of the shovel in one direction, and means for shifting the carriage.

In testimony that I claim the foregoing have hereunto setjmy hand at Milwaukee, 15 in the county of `Milwaukee and State of Wisconsin.

WALTER J. A. HOENECKE. 

